用于WLAN 802.11a的OFDM发射机的数字调制16QAM

RS232串口通信源代码，可以接收各种数据。-RS232 serial communication source code, can receive various data.

turbo是一种性能很好的信道编码，本程序用来实现turbo的编码部分-turbo is a good channel coding, the procedures used to achieve the turbo coding

visio器件读取宏,嵌入在器件库中.可以使用此宏统计-visio macro reading devices, embedded in the device library. You can use this macro statistics

这个源程序代码包提供了通信系统中BPSK,QPSK,OQPSK,MSK,MSK2,GMSK,QAM,QAM16等调制解调方式 用matlab的实现，以及它们在AWGN和Rayleigh信道下的通信系统实现及误码率性能-The source code package provides a communication system in BPSK, QPSK, OQPSK, MSK, MSK2, GMSK, QAM, QAM16 manner, such as modulation and demodulation matlab realization, as well as their in AWGN and Rayleigh fading and realize the communication system error rate performance

车载移动信道的仿真常用模型 模拟车载移动信道产生的瑞利衰落 默认为6径衰落 移动速度可以设定-Mobile channel simulation model used-vehicle mobile channel generated Rayleigh fading fading 6 defaults to the mobile speed can be set

Viterbi Decoding Techniques in the TMS320C54x Family code 即是TMS320C54x实现VIterbi译码，是C与汇编混合编程，相信学习通信的又要用DSP来实现的人，一定会惊喜的-Viterbi Decoding Techniques in the TMS320C54x Family code that is TMS320C54x realize Viterbi decoding is a mixed C and Assembly programming, I believe that learning communication have to use the DSP to realize people will surprise

单径瑞利信道中的两发一收STBC：Simulink进行仿真，测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。含理论分析 -Space-time block code Simulink BPSK

一个交换作业的源程序-a source of exchange operations

TSapi 软件电话源代码，在Definity交换机系列上面测试通过，该demo中有很多tsapi的应用，值得参考。-TSapi phone software source code, the Definity switch above the test series, the demo had many tsapi applications, a good reference.

三点式振荡器是指LC回路的三个端点与晶体管的三个电极分别连接而成的电路，如图4-1（a）所示。图中三个电抗元件X1、X2、X3构成了决定振荡频率的并联谐振回路，同时也构成了正反馈所需的反馈网络。从相位条件看，要构成振荡器，必须满足： (1)极相连的两个电抗X1、X2性质相同。 (2)X1与X2、X3的电抗性质相反。-three-point refers to LC oscillator circuit with three transistors endpoint of three electrodes were connected with the circuit, Figure 4-1 (a) below. Figure 3 reactor components X1, X2, X3 decision constitutes a frequency of the oscillation parallel resonant circuit, but also constitutes a positive feedback for the feedback network. From Phase conditions, to constitute an oscillator, to be met : (a) very connected to the two reactor X1, X2 the same nature. (2) X1 and X2, X3 nature of the resistance-- contrary.